REJ09B0254-0500
32
SH7727
Group
Hardware Manual
Renesas 32-Bit RISC Microcomputer
SuperH RISC engine Family/SH7700 Series
SH7727
HD6417727
Rev. 5.00
Revision Date: Dec 12, 2005
Keep safety first in your circuit designs!
1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and
more reliable, but there is always the possibility that trouble may occur with them. Trouble with
semiconductors may lead to personal injury, fire or property damage.
Remember to give due consideration to safety when making your circuit designs, with appropriate
measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of nonflammable material or
(iii) prevention against any malfunction or mishap.
Notes regarding these materials
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Technology Corp. product best suited to the customer's application; they do not convey any license
under any intellectual property rights, or any other rights, belonging to Renesas Technology Corp. or
a third party.
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party's rights, originating in the use of any product data, diagrams, charts, programs, algorithms, or
circuit application examples contained in these materials.
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algorithms represents information on products at the time of publication of these materials, and are
subject to change by Renesas Technology Corp. without notice due to product improvements or
other reasons. It is therefore recommended that customers contact Renesas Technology Corp. or
an authorized Renesas Technology Corp. product distributor for the latest product information
before purchasing a product listed herein.
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information contained herein.
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Rev. 5.00 Dec 12, 2005 page ii of lxxii
General Precautions on the Handling of Products
1. Treatment of NC Pins
Note: Do not connect anything to the NC pins.
The NC (not connected) pins are not connected to any of the internal circuitry; they are
used as test pins or to reduce noise. If something is connected to the NC pins, the
operation of the LSI is not guaranteed.
2. Treatment of Unused Input Pins
Note: Fix all unused input pins to high or low level.
Generally, the input pins of CMOS products are high-impedance input pins. If unused pins
are in their open states, intermediate levels are induced by noise in the vicinity, a pass-
through current flows internally, and a malfunction may occur.
3. Processing before Initialization
Note: When power is first supplied, the product’s state is undefined. The states of internal
circuits are undefined until full power is supplied throughout the chip and a low level is
input on the reset pin. During the period where the states are undefined, the register
settings and the output state of each pin are also undefined. Design your system so that it
does not malfunction because of processing while it is in this undefined state. For those
products which have a reset function, reset the LSI immediately after the power supply has
been turned on.
4. Prohibition of access to undefined or reserved address
Note: Access to undefined or reserved addresses is prohibited.
The undefined or reserved addresses may be used to expand functions, or test registers
may have been be allocated to these address. Do not access these registers: the system’s
operation is not guaranteed if they are accessed.
Rev. 5.00 Dec 12, 2005 page iii of lxxii
Rev. 5.00 Dec 12, 2005 page iv of lxxii
Preface
The SH7727 microprocessor incorporates the 32-bit SH-3 CPU and is also equipped with
peripheral functions necessary for configuring a user system.
The SH7727 is built in with a variety of peripheral functions such as cache memory, memory
management unit (MMU), interrupt controller, timers, three serial communication interfaces (SCI,
SCIF, SIOF), real-time clock (RTC), user break controller (UBC), bus state controller (BSC) and
AFE interface. The SH7727 can be used in a variety of applications that demand a high-speed
microcomputer with low power consumption.
The descriptions in this manual are based on the SH7727C. For details on using versions previous
to the SH7727B please refer to Using Versions Previous to the SH7727B at the end of the manual.
Note that the version is the SH7727C if “C” is engraved on the chip and the version is the
SH7727B if “B” is engraved. If there is no such indication the product is a version previous to the
SH7727B. (See Appendix E.)
Target Readers:
This manual is designed for use by people who design application systems using
the SH7727.
To use this manual, basic knowledge of electric circuits, logic circuits and microcomputers is
required.
Purpose:
This manual provides the information of the hardware functions and electrical
characteristics of the SH7727.
The SH-3, SH-3E, SH3-DSP Programming Manual contains detailed information of executable
instructions. Please read the Programming Manual together with this manual.
How to Use the Book:
•
To understand general functions
→
Read the manual from the beginning.
The manual explains the CPU, system control functions, peripheral functions and electrical
characteristics in that order.
•
To understanding CPU functions
→
Refer to the separate SH-3, SH-3E, SH3-DSP Programming Manual.
Explanatory Note:
Bit sequence: upper bit at left, and lower bit at right
List of Related Documents:
The latest documents are available on our Web site. Please make
sure that you have the latest version. (http://www.renesas.com/)
Rev. 5.00 Dec 12, 2005 page v of lxxii
嵌入式系统
